background

(DL) Delta Air Lines 139 On-time Performance Rating

Date Range:

01-Oct-2018 to 30-Nov-2018

(SFO) San Francisco International Airport

San Francisco, CA, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
67%
Late
0
0%
Very Late
0
0%
Excessive
1
33%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
3
Total Delays ( > 1 min )
1
Codeshares
0
Average Delay (min.)
102
Standard Deviation
0
Min
102
Max
102

DL 139 On-time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 67%
Average Delay Time 102 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 15% of all other flights in the FlightStats database.
On-time Performance Rating
1.4 of 5
Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 102 min
This flight has an average delay of 102 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.